Mexican President-elect Andres Manuel Lopez Obrador’s party could face a $10 million fine for violations of campaign finance rules, the national electoral institute said on Wednesday following the group’s wide-reaching election victory. Lopez Obrador, a former Mexico City mayor who has vowed to root out corruption and make government contracts transparent, on Sunday won by a landslide while his leftist National Regeneration Movement (MORENA) took an outright majority in Congress. The possible fine of more than 197 million pesos, slated to be put to a vote by the National Electoral Institute (INE) on July 18, would be the largest related to campaign financing for the recently concluded election season.